Steve Rogers was a scrawny fine arts student growing up during the Great Depression. His alcoholic father died when Steve was a child, and his mother passed away from pneumonia after he graduated high school. When the Nazi atrocities spread to America, Steve attempted to enlist in the army. There he was experimented on with a number of other soldiers in order to create the perfect super soldier, Steve was the only one to survive the process and became the worlds first "Super Soldier". He was promoted to a Captain which intern created his super hero alias, Captain America.
Captain America was sent to Germany to fight against the secret Organization within the Nazi Empire led by the infamous Red Skull. It was there that Captain America made a name for himself and with the help of his squad defeated Red Skull and was on the trail of Nazi scientist, Baron Zemo. Unfortunately both he and Captain America were involved in a crash in the Antarctic where Captain America was suspended animation and eventually freezing in solid ice.
Years later, a team of super-heroes called the Avengers discovered Rogers' frozen body in the North Atlantic, where he had been preserved for over 60 years. The Captain was grateful and willingly enlisted himself in the Avengers initiative making himself one of the most prominent members.